2-Methoxy-3-methylthiophene CAS 33687-87-5
| CAS No. | 33687-87-5 |
| Molecular Formula | C6H8OS |
| Molecular Weight | 128.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 128.19 g/mol gives 2-Methoxy-3-methylthiophene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 2-Methoxy-3-methylthiophene (CAS 33687-87-5), a certified reference material (molecular formula C6H8OS, MW 128.19 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H8OS, 2-Methoxy-3-methylthiophene contains sulfur-containing functionality, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 128.19 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-Methoxy-3-methylthiophene meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H8OS |
| Molecular Weight | 128.19 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1966 |
| Sulfur Atoms | 1 |
Related Methoxy Standards
- 3-Methoxy-2-methylthiophene (CAS 53119-55-4)
- 3-Methoxy-4-methylthiophene (CAS 72344-31-1)
- 2-Methoxy-1-(1-methylcyclopropyl)ethan-1-one (CAS 1507500-71-1)
- (E)-1-Methoxy-2-methylpent-1-en-3-one (CAS 56279-35-7)
- 1-methoxy-3-methylcyclohexane (CAS 52204-64-5)
- 1-MEthoxy-4-methylcyclohexane (CAS 90200-72-9)
- 1-Methoxy-4-methylpent-1-en-3-one (CAS 41850-86-6)
- 3-Methoxy-2,2-dimethylcyclobutan-1-one (CAS 2063-96-9)
Recommended Standards
- 2-Ethoxythiophene (CAS 36448-24-5)
- 2-(Furan-2-yl)ethane-1-thiol (CAS 59020-92-7)
- 2-(Ethylthio)furan (CAS 4218-14-8)
- 4-Methyl-2-(methylthio)furan (CAS 84735-62-6)
- Ethyl 3-((4-(pyrimidin-2-yl)piperazin-1-yl)sulfonyl)benzo[b]thiophene-2-carboxylate (CAS 941919-12-6)
- Aglepristone (CAS 124478-60-0)
- 5-(3-Methoxypropyl)-2-phenyl-N-(2-(6-(pyrrolidin-1-ylmethyl)thiazolo[5,4-b]pyridin-2-yl)phenyl)thiazole-4-carboxamide hydrochloride (CAS 2070015-26-6)
- 2-(Aminomethyl)-5-methylphenol (CAS 40680-68-0)
- 1',2'-Dihydrospiro[piperidine-4,3'-pyrrolo[2,3-b]pyridin]-2'-one dihydrochloride (CAS 883984-94-9)
- Methyl Propylene Phosphate (CAS 33554-05-1)
- (S)-4-(Benzyloxy)-2-methyl-4-oxobutanoic acid (CAS 143225-26-7)
- 5-(4-Benzylpiperazin-1-yl)pyridin-2-amine (CAS 1018505-55-9)
- Pyridine-4-sulfonyl Chloride (CAS 134479-04-2)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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